Vulnerability in Kernel (Linux) - hwmon: (w83792d)
Summary
GSD-2021-1001658: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field. Affects Kernel versions < 1499bb2c3a87a2efea0065adab2bd66badee61c3. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functions and services to enable the proper functioning of the system. One of the components within the Kernel is the hwmon subsystem, which handles monitoring and control of hardware sensors. The w83792d driver is responsible for supporting the W83792D chip, which is commonly found on motherboards and provides monitoring capabilities for various hardware parameters such as temperature, voltage, and fan speed.
Vulnerability Detail
The vulnerability identified in the w83792d driver is a NULL pointer dereference caused by an unnecessary structure field. This flaw could be exploited by an attacker to trigger a NULL pointer dereference, leading to a system crash or potential privilege escalation. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.10.71 by commit 1499bb2c3a87a2efea0065adab2bd66badee61c3.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The vulnerability in the w83792d driver of the Kernel (Linux) could potentially lead to a system crash or privilege escalation. It is crucial to update the Linux Kernel to version v5.10.71 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a system crash to potential privilege escalation, depending on how it is exploited.
No, the impact and attack plausibility of this vulnerability have not been proven yet.
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No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2021-1001658 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001658.json
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